Fixing Ruby binary build (again).

3 files changed, 182 insertions, 45 deletions

diff --git a/third_party/rake-compiler-dock/Dockerfile b/third_party/rake-compiler-dock/Dockerfile
index a8f5b8a116..c7a6657246 100644
--- a/third_party/rake-compiler-dock/Dockerfile
+++ b/third_party/rake-compiler-dock/Dockerfile
@@ -27,46 +27,75 @@ RUN gpg --keyserver hkp://keys.gnupg.net --recv-keys D39DC0E3 && \
 
 # Regenerate the following using build.sh if the build folder changes.
 RUN echo \
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 | base64 -d | tar xzC /tmp
 
 # Import patch files for ruby and gems
@@ -86,7 +115,7 @@ RUN bash -c " \
 # do not generate documentation for gems
 RUN echo "gem: --no-ri --no-rdoc" >> ~/.gemrc && \
     bash -c " \
-        rvm all do gem install bundler rake-compiler hoe mini_portile rubygems-tasks json && \
+        rvm all do gem install bundler rake-compiler hoe mini_portile rubygems-tasks && \
         rvm 2.3.0 do gem install mini_portile2 && \
         find /usr/local/rvm -type d -print0 | sudo xargs -0 chmod g+sw "
 
@@ -96,7 +125,7 @@ RUN sudo mkdir -p /usr/local/rake-compiler && \
     ln -s /usr/local/rake-compiler ~/.rake-compiler
 
 # Patch rake-compiler to avoid build of ruby extensions
-RUN cd /usr/local/rvm/gems/ruby-2.3.0/gems/rake-compiler-0.9.5 && patch -p1 < /home/rvm/patches/rake-compiler-0.9.5/without-exts.diff ; \
+RUN cd /usr/local/rvm/gems/ruby-2.3.0/gems/rake-compiler-0.9.5 && git apply /home/rvm/patches/rake-compiler-0.9.5/*.diff ; \
     true
 
 RUN bash -c "rvm use 2.3.0 --default && \
@@ -150,9 +179,12 @@ RUN mv /opt/mingw/mingw32/bin/i686-w64-mingw32-strip /opt/mingw/mingw32/bin/i686
 RUN find / -name rbconfig.rb | while read f ; do sed -i 's/0x0501/0x0600/' $f ; done
 RUN find / -name win32.h | while read f ; do sed -i 's/gettimeofday/rb_gettimeofday/' $f ; done
 RUN sed -i 's/defined.__MINGW64__.$/1/' /usr/local/rake-compiler/ruby/i686-w64-mingw32/ruby-2.0.0-p645/include/ruby-2.0.0/ruby/win32.h
-RUN find / -name libwinpthread.dll.a | while read f ; do rm $f ; done
-RUN find / -name libwinpthread-1.dll | while read f ; do rm $f ; done
+RUN find / -name libwinpthread.dll.a | xargs rm
+RUN find / -name libwinpthread-1.dll | xargs rm
 RUN find / -name *msvcrt-ruby*.dll.a | while read f ; do n=`echo $f | sed s/.dll//` ; mv $f $n ; done
+RUN find /usr/local/rake-compiler/ruby -name libruby.so | xargs rm
+RUN find /usr/local/rake-compiler/ruby -name libruby-static.a | while read f ; do ar t $f | xargs ar d $f ; done
+RUN find /usr/local/rake-compiler/ruby -name libruby-static.a | while read f ; do mv $f `echo $f | sed s/-static//` ; done
 
 # Install SIGINT forwarder
 RUN cp /tmp/build/sigfw.c /root/
diff --git a/third_party/rake-compiler-dock/build.sh b/third_party/rake-compiler-dock/build.sh
index 22ffd18cac..ca01fa6d4d 100755
--- a/third_party/rake-compiler-dock/build.sh
+++ b/third_party/rake-compiler-dock/build.sh
@@ -4,4 +4,4 @@
 
 echo 'RUN echo \\'
 tar cz build | base64 | sed 's/$/\\/'
-echo '| base64 -d | tar xzC /'
+echo '| base64 -d | tar xzC /tmp'
diff --git a/third_party/rake-compiler-dock/build/patches/rake-compiler-0.9.5/compat-with-bundler.diff b/third_party/rake-compiler-dock/build/patches/rake-compiler-0.9.5/compat-with-bundler.diff
new file mode 100644
index 0000000000..ea22bd928e
--- /dev/null
+++ b/third_party/rake-compiler-dock/build/patches/rake-compiler-0.9.5/compat-with-bundler.diff
@@ -0,0 +1,105 @@
+From 41f834449fc4323b2f995e8715aa5842d9fd9334 Mon Sep 17 00:00:00 2001
+From: Lars Kanis <lars@greiz-reinsdorf.de>
+Date: Sat, 30 Jan 2016 08:08:07 +0100
+Subject: [PATCH] Change the fake mechanism to be compatible with bundler.
+
+The previous fake mechanism worked by hooking onto the
+"require 'rbconfig'" call.
+This is problematic because bundler internally requires rbconfig, but doesn't
+work corretly in a faked environment.
+It then fails to load gems that are also part of the standard library, like
+json and rdoc.
+This results in issues like https://github.com/rake-compiler/rake-compiler-dock/issues/8
+
+The fake mechanism is now changed to hook onto the "require 'mkrb'" call,
+which is typically part of the extconf file, and it is where the faked platform
+values are actually needed.
+That way it is loaded after bundler/setup, so that the library paths are
+set according to the Gemfile.lock, to the native Linux libraries, before
+the fake environment is active.
+
+Please note, that the build directory of a given gem needs to be cleared,
+in order to get updated fake files. So do a "rm tmp pkg -rf".
+---
+ lib/rake/extensiontask.rb | 35 ++++++++++++++---------------------
+ 1 file changed, 14 insertions(+), 21 deletions(-)
+
+diff --git a/lib/rake/extensiontask.rb b/lib/rake/extensiontask.rb
+index 030af96..f914919 100644
+--- a/lib/rake/extensiontask.rb
++++ b/lib/rake/extensiontask.rb
+@@ -169,8 +169,8 @@ Java extension should be preferred.
+         # now add the extconf script
+         cmd << abs_extconf.relative_path_from(abs_tmp_path)
+ 
+-        # rbconfig.rb will be present if we are cross compiling
+-        if t.prerequisites.include?("#{tmp_path}/rbconfig.rb") then
++        # fake.rb will be present if we are cross compiling
++        if t.prerequisites.include?("#{tmp_path}/fake.rb") then
+           options.push(*cross_config_options(platf))
+         end
+ 
+@@ -365,39 +365,30 @@ Java extension should be preferred.
+       # define compilation tasks for cross platform!
+       define_compile_tasks(for_platform, ruby_ver)
+ 
+-      # chain fake.rb, rbconfig.rb and mkmf.rb to Makefile generation
++      # chain fake.rb and mkmf.rb to Makefile generation
+       file "#{tmp_path}/Makefile" => ["#{tmp_path}/fake.rb",
+-                                      "#{tmp_path}/rbconfig.rb",
+                                       "#{tmp_path}/mkmf.rb"]
+ 
+-      # copy the file from the cross-ruby location
+-      file "#{tmp_path}/rbconfig.rb" => [rbconfig_file] do |t|
++      # copy the rbconfig from the cross-ruby location and
++      # genearte fake.rb for different ruby versions
++      file "#{tmp_path}/fake.rb" => [rbconfig_file] do |t|
+         File.open(t.name, 'w') do |f|
+-          f.write "require 'fake.rb'\n\n"
++          f.write fake_rb(for_platform, ruby_ver)
+           f.write File.read(t.prerequisites.first)
+         end
+       end
+ 
+       # copy mkmf from cross-ruby location
+       file "#{tmp_path}/mkmf.rb" => [mkmf_file] do |t|
+-        cp t.prerequisites.first, t.name
+-        if ruby_ver < "1.9" && "1.9" <= RUBY_VERSION
+-          File.open(t.name, 'r+t') do |f|
+-            content = f.read
++        File.open(t.name, 'w') do |f|
++          content = File.read(t.prerequisites.first)
++          content.sub!(/^(require ')rbconfig(')$/, '\\1fake\\2')
++          if ruby_ver < "1.9" && "1.9" <= RUBY_VERSION
+             content.sub!(/^(      break )\*(defaults)$/, '\\1\\2.first')
+             content.sub!(/^(    return )\*(defaults)$/, '\\1\\2.first')
+             content.sub!(/^(  mfile\.)print( configuration\(srcprefix\))$/, '\\1puts\\2')
+-            f.rewind
+-            f.write content
+-            f.truncate(f.tell)
+           end
+-        end
+-      end
+-
+-      # genearte fake.rb for different ruby versions
+-      file "#{tmp_path}/fake.rb" do |t|
+-        File.open(t.name, 'w') do |f|
+-          f.write fake_rb(for_platform, ruby_ver)
++          f.write content
+         end
+       end
+ 
+@@ -495,8 +486,10 @@ Java extension should be preferred.
+         # "cannot load such file -- win32/resolv" when it is required later on.
+         # See also: https://github.com/tjschuck/rake-compiler-dev-box/issues/5
+         require 'resolv'
++        require 'rbconfig'
+ 
+         class Object
++          remove_const :RbConfig
+           remove_const :RUBY_PLATFORM
+           remove_const :RUBY_VERSION
+           remove_const :RUBY_DESCRIPTION if defined?(RUBY_DESCRIPTION)
+-- 
+2.5.0.windows.1
+